Coal-washer



(No Model.)

G. E. GILES.

GOAL WASHER.

No. 541,324. Pate ne 18, 1895.

UNITED STATES PATENT OFFIGE.

GEORGE EDWARD ILES, or OARBONDALE, PENNSYLVANIA.

FOCAL-WASHER.

' SPECIFICATION forming part of Letters Patent No. 541,324, dated June 18, 1895. Applicatioh filed N mb 20, 1894. S i l No. 529,385- (No model.) I

To all whom it may concern/.1

Beit known that I, GEORGE EDWARD GILES, a citizen of the United States, residing at Oarbondale, in the county of Lackawanna and State of Pennsylvania,have invented certain new and useful Improvements in Ooal-Wash ers; and I do declare thefollowing to be a full, clear, and exact descriptionofthe invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the figures of reference marked thereon, which form a part of this specification.

My invention relates to, a coal or culm washer.

Much of the coal is taken from the mine mixed with clay, dirt, &c., which renders it unfit for market, and the object of my invention is to produce a machine which will more efficiently wash and free it from these foreign substances.

To this end my invention consists in the employment of a peculiarly arranged and constructed washing screen through which the coal as it comes from the mine, is passed and cleaned.

In the accompanying drawings, Figure 1 represents a top or plan view of my complete invention, and Fig. 2 a sectional elevation thereof.

The reference numeral 1, denotes a tub or receptacle in which the coal or culm is deposited and agitated. The culm is fed into this tub through an inclined funnel or chute 2. A pair of crushing rolls 3 are placed transversely across the feed chute to reduce the lumps to the proper size before they enter the tub. A screen 4 is placed over the bottom of the tub, and the culm is agitated on this screen by a revolving agitator consisting of a vertical shaft 5 provided with screw blades 6, and intervening horizontally disposed radial paddles 7, having teeth 8 in their lower edge. These paddles are placed between each of the screw blades, and serve as agitators. The screw blades also press the clay and foreign matter down through the perforations of the screen 4., where it falls upon the conical shaped bottom 9 of a contrally disposed tub, and is then urged through the hole 10, bya conical screw 19 on the lower discharge orifice 12 the bottom 20 of which is I located on a plane with the top of the paddles 7, thus leaving the vertical wall beneath the orifice equal in height to thewidth of the paddles. From this discharge orifice 12 the coal passes upon a downward sloping perforated screen 13 which leads to-a revolving screen which assorts it into the various sizes for the market.

The coal and culm are thoroughly washed before and after they enter the tub by spouts 14. and 15 respectively, located over the receiving and discharge chutes, and attached to branch pipes .16 and 17 connected to any suitable source. A trough 18 is located under the spout 15 to carry off the washings.

The preferred construction of my device having been set forth I will now briefly describe its operation.

-The coal as it comes from the mine is fed into the inclined feed chute, and coming in contact with the crushers 3, it is crushed and passed on to the tub 1, where it falls upon the perforated screen 4. Here it is carried around in a wet and saturated condition by the radial paddles 7 of the agitator. The filling of the tub and the rotation of the agitator cause the coal to pass out of the discharge orifice at the side while the bulk of the clay is washed down through the screen at.

It is evident that my invention could be varied in many slight ways which might suggest themselves to a skilled mechanic. Therefore I do not limit myself to the exact construction herein shown but consider myself entitled to all such variations as come within the spirit and scope of my device.

What I claim as new, and desire to secure by Letters Patent, is-

1. In a coal or culm washer, the combination with a tub having a conical bottom and provided with a restricted central dischargeopening in its lower end, of a horizontal screen located in the tub, a shaft provided with agitator blades operating over the screen, and a conical ejecting screw at the lower end of said shaft and disposed beneath-the screen and closely fitting the lower portion of the bottom,the said screw being arranged to eject refuse from the tub as it falls through the screen, substantially as described.

2. In a coal or culm washer, the combination with a tub or tank having a screen, an agitator provided with screw-blades operating over the screen, a refuse ejector operating under the screen, an inclined feed chute, a discharge chute leading from the tub, and a washing device located at the feed and discharge chutes whereby Washing is effected before and after separation in the tub.

3. In a coal or culm washer, the combination with a tub or tank having a screen, an

agitator provided with screw-blades an ejectv ing device, an inclined feed chute, a perforated discharge chute leaving the tub on a 7 may be sprayed.

4. In a coal or culm'washer, the combination of a tub or tank, having a horizontal screen, an agitator operating above the screen and provided with screw-blades and a series of horizontal paddles, an ejecting device operating beneath the said screen, a receiving chute and crushing rolls adapted to crush the material before it enters the tub, a dis-.

charge chute leaving the tub on a level with the highest point of the agitator, the latter chute having a perforated bottom, and washing devices adapted to project water upon the said receiving and discharge chutes.

In witness whereof I affix my signature in presence of two witnesses. V

GEORGE EDWARD GILES.

Witnesses:

JAs. T. MGANDREW, M. F. BARRETT. 

